REI Co‑op Flash 55L
Specifications
| Weight | Volume | Max Load | Frame Type | Materials | MSRP |
|---|---|---|---|---|---|
| 2 lbs 10 oz | 55 L | 35 lbs | Internal integrated suspension | Riptstop nylon | $199.00 |
Comfort
The REI Co‑op Flash 55 is designed to deliver all‑day comfort without sacrificing its ultralight credentials. Its 3D‑contoured hipbelt and ventilated back panel are molded from a single piece of dense foam, wrapping snugly around your hips to shift weight off your shoulders while promoting airflow to keep you cool. A flexible spring‑steel frame moves naturally with your stride and features an adjustable torso system, allowing you to dial in the right fit for your body. Plush, mesh‑covered shoulder straps, paired with load lifters and a supportive chest strap, help balance your load and maintain stability. Optimized for loads up to around 30 pounds, the Flash 55 combines body‑hugging support, breathable materials, and customizable suspension to make even long days on the trail feel lighter and more enjoyable.
Weight & Packing
The REI Co-op Flash 55 is built for backpackers who want to go light without giving up smart features. Weighing just 2 lbs. 10 oz. (women’s small), it delivers a 55-liter capacity with enough structure to comfortably carry loads up to 35 pounds. One of its standout features is REI’s modular Packmod system, which allows you to customize your carry by adding or removing components like the top lid, hipbelt pockets, and shoulder strap pouches—cutting weight when you don’t need the extras. The roll-top closure, front mesh stash pocket, side water bottle pockets, and large internal sleeve give you multiple ways to organize gear, while lightweight materials and a minimalist frame keep the pack trail-efficient and highly packable.
Price
Priced at $199, the REI Co-op Flash 55 offers standout value in the ultralight backpacking category. It delivers many of the features found in higher-end packs, like modular customization, adjustable suspension, and durable yet lightweight materials, at a significantly lower cost. The Flash 55 is an accessible, budget-friendly option for serious backpackers who want performance without the premium price tag, making it a go-to choice for value-conscious adventurers.
Quality & Materials
The Flash 55 is built with a focus on durability, sustainability, and weight efficiency. It uses high-tenacity recycled nylon in the body and reinforced areas, offering a strong balance between abrasion resistance and packability. The frame features a flexible spring-steel perimeter that provides structure without bulk, while the shoulder straps and hipbelt are padded with supportive, breathable mesh for comfort over long distances. REI also incorporates its Packmod attachment system using lightweight hardware and tough materials to ensure modular components stay secure on the move. Overall, the Flash 55 combines thoughtful material choices and solid construction to deliver long-lasting performance for demanding trails, all while keeping weight to a minimum.
Consumer Sentiment: Pros & Cons
Pros:
- Affordable ultralight performance
- Comfortable suspension for loads up to 35 lbs
- Modular accessories
Cons:
- Shoulder straps can squeak under load
- Fabric durability concerns, particularly in tight bush or rocky terrain
Comparison to Comparable Packs
Osprey Eja 58: The women’s Flash 55 is lighter and more customizable, while the Eja 58 offers better ventilation and a slightly more supportive frame for heavier loads.
Granite Gear Crown3 60: The Crown3 60 provides greater load-hauling capacity and more padding, but the Flash 55 is more modular and weighs less, making it better suited for fast-and-light trips.
ULA Equipment Ultra Circuit 68: The Ultra Circuit offers more volume and ruggedness for longer hauls, but the women’s Flash 55 is more affordable, lighter, and better tailored for a female-specific fit.
Who is this For?
The Flash 55 is perfect for hikers who want an ultralight frameless pack with enough support to handle up to 35 lbs: think long weekend trips, ultralight backpacking, or mid-distance thru-hikes. It’s also ideal for budget-conscious adventurers who appreciate in-store support and a year return policy. Not ideal if you’re seeking an over 35 lbs load carrier or need heavy-duty durability for bushwhacking.
